1 | /* Copyright (C) 1991-2013 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ |
17 | |
18 | #ifndef _NETINET_IN_H |
19 | #define _NETINET_IN_H 1 |
20 | |
21 | #include <features.h> |
22 | #include <stdint.h> |
23 | #include <sys/socket.h> |
24 | #include <bits/types.h> |
25 | |
26 | |
27 | __BEGIN_DECLS |
28 | |
29 | /* Standard well-defined IP protocols. */ |
30 | enum |
31 | { |
32 | IPPROTO_IP = 0, /* Dummy protocol for TCP. */ |
33 | #define IPPROTO_IP IPPROTO_IP |
34 | IPPROTO_HOPOPTS = 0, /* IPv6 Hop-by-Hop options. */ |
35 | #define IPPROTO_HOPOPTS IPPROTO_HOPOPTS |
36 | IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */ |
37 | #define IPPROTO_ICMP IPPROTO_ICMP |
38 | IPPROTO_IGMP = 2, /* Internet Group Management Protocol. */ |
39 | #define IPPROTO_IGMP IPPROTO_IGMP |
40 | IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94). */ |
41 | #define IPPROTO_IPIP IPPROTO_IPIP |
42 | IPPROTO_TCP = 6, /* Transmission Control Protocol. */ |
43 | #define IPPROTO_TCP IPPROTO_TCP |
44 | IPPROTO_EGP = 8, /* Exterior Gateway Protocol. */ |
45 | #define IPPROTO_EGP IPPROTO_EGP |
46 | IPPROTO_PUP = 12, /* PUP protocol. */ |
47 | #define IPPROTO_PUP IPPROTO_PUP |
48 | IPPROTO_UDP = 17, /* User Datagram Protocol. */ |
49 | #define IPPROTO_UDP IPPROTO_UDP |
50 | IPPROTO_IDP = 22, /* XNS IDP protocol. */ |
51 | #define IPPROTO_IDP IPPROTO_IDP |
52 | IPPROTO_TP = 29, /* SO Transport Protocol Class 4. */ |
53 | #define IPPROTO_TP IPPROTO_TP |
54 | IPPROTO_DCCP = 33, /* Datagram Congestion Control Protocol. */ |
55 | #define IPPROTO_DCCP IPPROTO_DCCP |
56 | IPPROTO_IPV6 = 41, /* IPv6 header. */ |
57 | #define IPPROTO_IPV6 IPPROTO_IPV6 |
58 | IPPROTO_ROUTING = 43, /* IPv6 routing header. */ |
59 | #define IPPROTO_ROUTING IPPROTO_ROUTING |
60 | IPPROTO_FRAGMENT = 44, /* IPv6 fragmentation header. */ |
61 | #define IPPROTO_FRAGMENT IPPROTO_FRAGMENT |
62 | IPPROTO_RSVP = 46, /* Reservation Protocol. */ |
63 | #define IPPROTO_RSVP IPPROTO_RSVP |
64 | IPPROTO_GRE = 47, /* General Routing Encapsulation. */ |
65 | #define IPPROTO_GRE IPPROTO_GRE |
66 | IPPROTO_ESP = 50, /* encapsulating security payload. */ |
67 | #define IPPROTO_ESP IPPROTO_ESP |
68 | IPPROTO_AH = 51, /* authentication header. */ |
69 | #define IPPROTO_AH IPPROTO_AH |
70 | IPPROTO_ICMPV6 = 58, /* ICMPv6. */ |
71 | #define IPPROTO_ICMPV6 IPPROTO_ICMPV6 |
72 | IPPROTO_NONE = 59, /* IPv6 no next header. */ |
73 | #define IPPROTO_NONE IPPROTO_NONE |
74 | IPPROTO_DSTOPTS = 60, /* IPv6 destination options. */ |
75 | #define IPPROTO_DSTOPTS IPPROTO_DSTOPTS |
76 | IPPROTO_MTP = 92, /* Multicast Transport Protocol. */ |
77 | #define IPPROTO_MTP IPPROTO_MTP |
78 | IPPROTO_ENCAP = 98, /* Encapsulation Header. */ |
79 | #define IPPROTO_ENCAP IPPROTO_ENCAP |
80 | IPPROTO_PIM = 103, /* Protocol Independent Multicast. */ |
81 | #define IPPROTO_PIM IPPROTO_PIM |
82 | IPPROTO_COMP = 108, /* Compression Header Protocol. */ |
83 | #define IPPROTO_COMP IPPROTO_COMP |
84 | IPPROTO_SCTP = 132, /* Stream Control Transmission Protocol. */ |
85 | #define IPPROTO_SCTP IPPROTO_SCTP |
86 | IPPROTO_UDPLITE = 136, /* UDP-Lite protocol. */ |
87 | #define IPPROTO_UDPLITE IPPROTO_UDPLITE |
88 | IPPROTO_RAW = 255, /* Raw IP packets. */ |
89 | #define IPPROTO_RAW IPPROTO_RAW |
90 | IPPROTO_MAX |
91 | }; |
92 | |
93 | |
94 | /* Type to represent a port. */ |
95 | typedef uint16_t in_port_t; |
96 | |
97 | /* Standard well-known ports. */ |
98 | enum |
99 | { |
100 | IPPORT_ECHO = 7, /* Echo service. */ |
101 | IPPORT_DISCARD = 9, /* Discard transmissions service. */ |
102 | IPPORT_SYSTAT = 11, /* System status service. */ |
103 | IPPORT_DAYTIME = 13, /* Time of day service. */ |
104 | IPPORT_NETSTAT = 15, /* Network status service. */ |
105 | IPPORT_FTP = 21, /* File Transfer Protocol. */ |
106 | IPPORT_TELNET = 23, /* Telnet protocol. */ |
107 | IPPORT_SMTP = 25, /* Simple Mail Transfer Protocol. */ |
108 | IPPORT_TIMESERVER = 37, /* Timeserver service. */ |
109 | IPPORT_NAMESERVER = 42, /* Domain Name Service. */ |
110 | IPPORT_WHOIS = 43, /* Internet Whois service. */ |
111 | IPPORT_MTP = 57, |
112 | |
113 | IPPORT_TFTP = 69, /* Trivial File Transfer Protocol. */ |
114 | IPPORT_RJE = 77, |
115 | IPPORT_FINGER = 79, /* Finger service. */ |
116 | IPPORT_TTYLINK = 87, |
117 | IPPORT_SUPDUP = 95, /* SUPDUP protocol. */ |
118 | |
119 | |
120 | IPPORT_EXECSERVER = 512, /* execd service. */ |
121 | IPPORT_LOGINSERVER = 513, /* rlogind service. */ |
122 | IPPORT_CMDSERVER = 514, |
123 | IPPORT_EFSSERVER = 520, |
124 | |
125 | /* UDP ports. */ |
126 | IPPORT_BIFFUDP = 512, |
127 | IPPORT_WHOSERVER = 513, |
128 | IPPORT_ROUTESERVER = 520, |
129 | |
130 | /* Ports less than this value are reserved for privileged processes. */ |
131 | IPPORT_RESERVED = 1024, |
132 | |
133 | /* Ports greater this value are reserved for (non-privileged) servers. */ |
134 | IPPORT_USERRESERVED = 5000 |
135 | }; |
136 | |
137 | |
138 | /* Internet address. */ |
139 | typedef uint32_t in_addr_t; |
140 | struct in_addr |
141 | { |
142 | in_addr_t s_addr; |
143 | }; |
144 | |
145 | |
146 | /* Definitions of the bits in an Internet address integer. |
147 | |
148 | On subnets, host and network parts are found according to |
149 | the subnet mask, not these masks. */ |
150 | |
151 | #define IN_CLASSA(a) ((((in_addr_t)(a)) & 0x80000000) == 0) |
152 | #define IN_CLASSA_NET 0xff000000 |
153 | #define IN_CLASSA_NSHIFT 24 |
154 | #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) |
155 | #define IN_CLASSA_MAX 128 |
156 | |
157 | #define IN_CLASSB(a) ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000) |
158 | #define IN_CLASSB_NET 0xffff0000 |
159 | #define IN_CLASSB_NSHIFT 16 |
160 | #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) |
161 | #define IN_CLASSB_MAX 65536 |
162 | |
163 | #define IN_CLASSC(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000) |
164 | #define IN_CLASSC_NET 0xffffff00 |
165 | #define IN_CLASSC_NSHIFT 8 |
166 | #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) |
167 | |
168 | #define IN_CLASSD(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000) |
169 | #define IN_MULTICAST(a) IN_CLASSD(a) |
170 | |
171 | #define IN_EXPERIMENTAL(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000) |
172 | #define IN_BADCLASS(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000) |
173 | |
174 | /* Address to accept any incoming messages. */ |
175 | #define INADDR_ANY ((in_addr_t) 0x00000000) |
176 | /* Address to send to all hosts. */ |
177 | #define INADDR_BROADCAST ((in_addr_t) 0xffffffff) |
178 | /* Address indicating an error return. */ |
179 | #define INADDR_NONE ((in_addr_t) 0xffffffff) |
180 | |
181 | /* Network number for local host loopback. */ |
182 | #define IN_LOOPBACKNET 127 |
183 | /* Address to loopback in software to local host. */ |
184 | #ifndef INADDR_LOOPBACK |
185 | # define INADDR_LOOPBACK ((in_addr_t) 0x7f000001) /* Inet 127.0.0.1. */ |
186 | #endif |
187 | |
188 | /* Defines for Multicast INADDR. */ |
189 | #define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000) /* 224.0.0.0 */ |
190 | #define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001) /* 224.0.0.1 */ |
191 | #define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002) /* 224.0.0.2 */ |
192 | #define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */ |
193 | |
194 | |
195 | /* IPv6 address */ |
196 | struct in6_addr |
197 | { |
198 | union |
199 | { |
200 | uint8_t __u6_addr8[16]; |
201 | #if defined __USE_MISC || defined __USE_GNU |
202 | uint16_t __u6_addr16[8]; |
203 | uint32_t __u6_addr32[4]; |
204 | #endif |
205 | } __in6_u; |
206 | #define s6_addr __in6_u.__u6_addr8 |
207 | #if defined __USE_MISC || defined __USE_GNU |
208 | # define s6_addr16 __in6_u.__u6_addr16 |
209 | # define s6_addr32 __in6_u.__u6_addr32 |
210 | #endif |
211 | }; |
212 | |
213 | extern const struct in6_addr in6addr_any; /* :: */ |
214 | extern const struct in6_addr in6addr_loopback; /* ::1 */ |
215 | #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } } |
216 | #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } } |
217 | |
218 | #define INET_ADDRSTRLEN 16 |
219 | #define INET6_ADDRSTRLEN 46 |
220 | |
221 | |
222 | /* Structure describing an Internet socket address. */ |
223 | struct sockaddr_in |
224 | { |
225 | __SOCKADDR_COMMON (sin_); |
226 | in_port_t sin_port; /* Port number. */ |
227 | struct in_addr sin_addr; /* Internet address. */ |
228 | |
229 | /* Pad to size of `struct sockaddr'. */ |
230 | unsigned char sin_zero[sizeof (struct sockaddr) - |
231 | __SOCKADDR_COMMON_SIZE - |
232 | sizeof (in_port_t) - |
233 | sizeof (struct in_addr)]; |
234 | }; |
235 | |
236 | /* Ditto, for IPv6. */ |
237 | struct sockaddr_in6 |
238 | { |
239 | __SOCKADDR_COMMON (sin6_); |
240 | in_port_t sin6_port; /* Transport layer port # */ |
241 | uint32_t sin6_flowinfo; /* IPv6 flow information */ |
242 | struct in6_addr sin6_addr; /* IPv6 address */ |
243 | uint32_t sin6_scope_id; /* IPv6 scope-id */ |
244 | }; |
245 | |
246 | |
247 | #if defined __USE_MISC || defined __USE_GNU |
248 | /* IPv4 multicast request. */ |
249 | struct ip_mreq |
250 | { |
251 | /* IP multicast address of group. */ |
252 | struct in_addr imr_multiaddr; |
253 | |
254 | /* Local IP address of interface. */ |
255 | struct in_addr imr_interface; |
256 | }; |
257 | |
258 | struct ip_mreq_source |
259 | { |
260 | /* IP multicast address of group. */ |
261 | struct in_addr imr_multiaddr; |
262 | |
263 | /* IP address of source. */ |
264 | struct in_addr imr_interface; |
265 | |
266 | /* IP address of interface. */ |
267 | struct in_addr imr_sourceaddr; |
268 | }; |
269 | #endif |
270 | |
271 | |
272 | /* Likewise, for IPv6. */ |
273 | struct ipv6_mreq |
274 | { |
275 | /* IPv6 multicast address of group */ |
276 | struct in6_addr ipv6mr_multiaddr; |
277 | |
278 | /* local interface */ |
279 | unsigned int ipv6mr_interface; |
280 | }; |
281 | |
282 | |
283 | #if defined __USE_MISC || defined __USE_GNU |
284 | /* Multicast group request. */ |
285 | struct group_req |
286 | { |
287 | /* Interface index. */ |
288 | uint32_t gr_interface; |
289 | |
290 | /* Group address. */ |
291 | struct sockaddr_storage gr_group; |
292 | }; |
293 | |
294 | struct group_source_req |
295 | { |
296 | /* Interface index. */ |
297 | uint32_t gsr_interface; |
298 | |
299 | /* Group address. */ |
300 | struct sockaddr_storage gsr_group; |
301 | |
302 | /* Source address. */ |
303 | struct sockaddr_storage gsr_source; |
304 | }; |
305 | |
306 | |
307 | /* Full-state filter operations. */ |
308 | struct ip_msfilter |
309 | { |
310 | /* IP multicast address of group. */ |
311 | struct in_addr imsf_multiaddr; |
312 | |
313 | /* Local IP address of interface. */ |
314 | struct in_addr imsf_interface; |
315 | |
316 | /* Filter mode. */ |
317 | uint32_t imsf_fmode; |
318 | |
319 | /* Number of source addresses. */ |
320 | uint32_t imsf_numsrc; |
321 | /* Source addresses. */ |
322 | struct in_addr imsf_slist[1]; |
323 | }; |
324 | |
325 | #define IP_MSFILTER_SIZE(numsrc) (sizeof (struct ip_msfilter) \ |
326 | - sizeof (struct in_addr) \ |
327 | + (numsrc) * sizeof (struct in_addr)) |
328 | |
329 | struct group_filter |
330 | { |
331 | /* Interface index. */ |
332 | uint32_t gf_interface; |
333 | |
334 | /* Group address. */ |
335 | struct sockaddr_storage gf_group; |
336 | |
337 | /* Filter mode. */ |
338 | uint32_t gf_fmode; |
339 | |
340 | /* Number of source addresses. */ |
341 | uint32_t gf_numsrc; |
342 | /* Source addresses. */ |
343 | struct sockaddr_storage gf_slist[1]; |
344 | }; |
345 | |
346 | #define GROUP_FILTER_SIZE(numsrc) (sizeof (struct group_filter) \ |
347 | - sizeof (struct sockaddr_storage) \ |
348 | + ((numsrc) \ |
349 | * sizeof (struct sockaddr_storage))) |
350 | #endif |
351 | |
352 | |
353 | /* Get system-specific definitions. */ |
354 | #include <bits/in.h> |
355 | |
356 | /* Functions to convert between host and network byte order. |
357 | |
358 | Please note that these functions normally take `unsigned long int' or |
359 | `unsigned short int' values as arguments and also return them. But |
360 | this was a short-sighted decision since on different systems the types |
361 | may have different representations but the values are always the same. */ |
362 | |
363 | extern uint32_t ntohl (uint32_t __netlong) __THROW __attribute__ ((__const__)); |
364 | extern uint16_t ntohs (uint16_t __netshort) |
365 | __THROW __attribute__ ((__const__)); |
366 | extern uint32_t htonl (uint32_t __hostlong) |
367 | __THROW __attribute__ ((__const__)); |
368 | extern uint16_t htons (uint16_t __hostshort) |
369 | __THROW __attribute__ ((__const__)); |
370 | |
371 | #include <endian.h> |
372 | |
373 | /* Get machine dependent optimized versions of byte swapping functions. */ |
374 | #include <bits/byteswap.h> |
375 | |
376 | #ifdef __OPTIMIZE__ |
377 | /* We can optimize calls to the conversion functions. Either nothing has |
378 | to be done or we are using directly the byte-swapping functions which |
379 | often can be inlined. */ |
380 | # if __BYTE_ORDER == __BIG_ENDIAN |
381 | /* The host byte order is the same as network byte order, |
382 | so these functions are all just identity. */ |
383 | # define ntohl(x) (x) |
384 | # define ntohs(x) (x) |
385 | # define htonl(x) (x) |
386 | # define htons(x) (x) |
387 | # else |
388 | # if __BYTE_ORDER == __LITTLE_ENDIAN |
389 | # define ntohl(x) __bswap_32 (x) |
390 | # define ntohs(x) __bswap_16 (x) |
391 | # define htonl(x) __bswap_32 (x) |
392 | # define htons(x) __bswap_16 (x) |
393 | # endif |
394 | # endif |
395 | #endif |
396 | |
397 | #ifdef __GNUC__ |
398 | # define IN6_IS_ADDR_UNSPECIFIED(a) \ |
399 | (__extension__ \ |
400 | ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ |
401 | __a->s6_addr32[0] == 0 \ |
402 | && __a->s6_addr32[1] == 0 \ |
403 | && __a->s6_addr32[2] == 0 \ |
404 | && __a->s6_addr32[3] == 0; })) |
405 | |
406 | # define IN6_IS_ADDR_LOOPBACK(a) \ |
407 | (__extension__ \ |
408 | ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ |
409 | __a->s6_addr32[0] == 0 \ |
410 | && __a->s6_addr32[1] == 0 \ |
411 | && __a->s6_addr32[2] == 0 \ |
412 | && __a->s6_addr32[3] == htonl (1); })) |
413 | |
414 | # define IN6_IS_ADDR_LINKLOCAL(a) \ |
415 | (__extension__ \ |
416 | ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ |
417 | (__a->s6_addr32[0] & htonl (0xffc00000)) == htonl (0xfe800000); })) |
418 | |
419 | # define IN6_IS_ADDR_SITELOCAL(a) \ |
420 | (__extension__ \ |
421 | ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ |
422 | (__a->s6_addr32[0] & htonl (0xffc00000)) == htonl (0xfec00000); })) |
423 | |
424 | # define IN6_IS_ADDR_V4MAPPED(a) \ |
425 | (__extension__ \ |
426 | ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ |
427 | __a->s6_addr32[0] == 0 \ |
428 | && __a->s6_addr32[1] == 0 \ |
429 | && __a->s6_addr32[2] == htonl (0xffff); })) |
430 | |
431 | # define IN6_IS_ADDR_V4COMPAT(a) \ |
432 | (__extension__ \ |
433 | ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ |
434 | __a->s6_addr32[0] == 0 \ |
435 | && __a->s6_addr32[1] == 0 \ |
436 | && __a->s6_addr32[2] == 0 \ |
437 | && ntohl (__a->s6_addr32[3]) > 1; })) |
438 | |
439 | # define IN6_ARE_ADDR_EQUAL(a,b) \ |
440 | (__extension__ \ |
441 | ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ |
442 | const struct in6_addr *__b = (const struct in6_addr *) (b); \ |
443 | __a->s6_addr32[0] == __b->s6_addr32[0] \ |
444 | && __a->s6_addr32[1] == __b->s6_addr32[1] \ |
445 | && __a->s6_addr32[2] == __b->s6_addr32[2] \ |
446 | && __a->s6_addr32[3] == __b->s6_addr32[3]; })) |
447 | #else |
448 | # define IN6_IS_ADDR_UNSPECIFIED(a) \ |
449 | (((const uint32_t *) (a))[0] == 0 \ |
450 | && ((const uint32_t *) (a))[1] == 0 \ |
451 | && ((const uint32_t *) (a))[2] == 0 \ |
452 | && ((const uint32_t *) (a))[3] == 0) |
453 | |
454 | # define IN6_IS_ADDR_LOOPBACK(a) \ |
455 | (((const uint32_t *) (a))[0] == 0 \ |
456 | && ((const uint32_t *) (a))[1] == 0 \ |
457 | && ((const uint32_t *) (a))[2] == 0 \ |
458 | && ((const uint32_t *) (a))[3] == htonl (1)) |
459 | |
460 | # define IN6_IS_ADDR_LINKLOCAL(a) \ |
461 | ((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \ |
462 | == htonl (0xfe800000)) |
463 | |
464 | # define IN6_IS_ADDR_SITELOCAL(a) \ |
465 | ((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \ |
466 | == htonl (0xfec00000)) |
467 | |
468 | # define IN6_IS_ADDR_V4MAPPED(a) \ |
469 | ((((const uint32_t *) (a))[0] == 0) \ |
470 | && (((const uint32_t *) (a))[1] == 0) \ |
471 | && (((const uint32_t *) (a))[2] == htonl (0xffff))) |
472 | |
473 | # define IN6_IS_ADDR_V4COMPAT(a) \ |
474 | ((((const uint32_t *) (a))[0] == 0) \ |
475 | && (((const uint32_t *) (a))[1] == 0) \ |
476 | && (((const uint32_t *) (a))[2] == 0) \ |
477 | && (ntohl (((const uint32_t *) (a))[3]) > 1)) |
478 | |
479 | # define IN6_ARE_ADDR_EQUAL(a,b) \ |
480 | ((((const uint32_t *) (a))[0] == ((const uint32_t *) (b))[0]) \ |
481 | && (((const uint32_t *) (a))[1] == ((const uint32_t *) (b))[1]) \ |
482 | && (((const uint32_t *) (a))[2] == ((const uint32_t *) (b))[2]) \ |
483 | && (((const uint32_t *) (a))[3] == ((const uint32_t *) (b))[3])) |
484 | #endif |
485 | |
486 | #define IN6_IS_ADDR_MULTICAST(a) (((const uint8_t *) (a))[0] == 0xff) |
487 | |
488 | #if defined __USE_MISC || defined __USE_GNU |
489 | /* Bind socket to a privileged IP port. */ |
490 | extern int bindresvport (int __sockfd, struct sockaddr_in *__sock_in) __THROW; |
491 | |
492 | /* The IPv6 version of this function. */ |
493 | extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in) |
494 | __THROW; |
495 | #endif |
496 | |
497 | |
498 | #define IN6_IS_ADDR_MC_NODELOCAL(a) \ |
499 | (IN6_IS_ADDR_MULTICAST(a) \ |
500 | && ((((const uint8_t *) (a))[1] & 0xf) == 0x1)) |
501 | |
502 | #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ |
503 | (IN6_IS_ADDR_MULTICAST(a) \ |
504 | && ((((const uint8_t *) (a))[1] & 0xf) == 0x2)) |
505 | |
506 | #define IN6_IS_ADDR_MC_SITELOCAL(a) \ |
507 | (IN6_IS_ADDR_MULTICAST(a) \ |
508 | && ((((const uint8_t *) (a))[1] & 0xf) == 0x5)) |
509 | |
510 | #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ |
511 | (IN6_IS_ADDR_MULTICAST(a) \ |
512 | && ((((const uint8_t *) (a))[1] & 0xf) == 0x8)) |
513 | |
514 | #define IN6_IS_ADDR_MC_GLOBAL(a) \ |
515 | (IN6_IS_ADDR_MULTICAST(a) \ |
516 | && ((((const uint8_t *) (a))[1] & 0xf) == 0xe)) |
517 | |
518 | |
519 | #ifdef __USE_GNU |
520 | struct cmsghdr; /* Forward declaration. */ |
521 | |
522 | /* IPv6 packet information. */ |
523 | struct in6_pktinfo |
524 | { |
525 | struct in6_addr ipi6_addr; /* src/dst IPv6 address */ |
526 | unsigned int ipi6_ifindex; /* send/recv interface index */ |
527 | }; |
528 | |
529 | /* IPv6 MTU information. */ |
530 | struct ip6_mtuinfo |
531 | { |
532 | struct sockaddr_in6 ip6m_addr; /* dst address including zone ID */ |
533 | uint32_t ip6m_mtu; /* path MTU in host byte order */ |
534 | }; |
535 | |
536 | |
537 | /* Obsolete hop-by-hop and Destination Options Processing (RFC 2292). */ |
538 | extern int inet6_option_space (int __nbytes) |
539 | __THROW __attribute_deprecated__; |
540 | extern int inet6_option_init (void *__bp, struct cmsghdr **__cmsgp, |
541 | int __type) __THROW __attribute_deprecated__; |
542 | extern int inet6_option_append (struct cmsghdr *__cmsg, |
543 | const uint8_t *__typep, int __multx, |
544 | int __plusy) __THROW __attribute_deprecated__; |
545 | extern uint8_t *inet6_option_alloc (struct cmsghdr *__cmsg, int __datalen, |
546 | int __multx, int __plusy) |
547 | __THROW __attribute_deprecated__; |
548 | extern int inet6_option_next (const struct cmsghdr *__cmsg, |
549 | uint8_t **__tptrp) |
550 | __THROW __attribute_deprecated__; |
551 | extern int inet6_option_find (const struct cmsghdr *__cmsg, |
552 | uint8_t **__tptrp, int __type) |
553 | __THROW __attribute_deprecated__; |
554 | |
555 | |
556 | /* Hop-by-Hop and Destination Options Processing (RFC 3542). */ |
557 | extern int inet6_opt_init (void *__extbuf, socklen_t __extlen) __THROW; |
558 | extern int inet6_opt_append (void *__extbuf, socklen_t __extlen, int __offset, |
559 | uint8_t __type, socklen_t __len, uint8_t __align, |
560 | void **__databufp) __THROW; |
561 | extern int inet6_opt_finish (void *__extbuf, socklen_t __extlen, int __offset) |
562 | __THROW; |
563 | extern int inet6_opt_set_val (void *__databuf, int __offset, void *__val, |
564 | socklen_t __vallen) __THROW; |
565 | extern int inet6_opt_next (void *__extbuf, socklen_t __extlen, int __offset, |
566 | uint8_t *__typep, socklen_t *__lenp, |
567 | void **__databufp) __THROW; |
568 | extern int inet6_opt_find (void *__extbuf, socklen_t __extlen, int __offset, |
569 | uint8_t __type, socklen_t *__lenp, |
570 | void **__databufp) __THROW; |
571 | extern int inet6_opt_get_val (void *__databuf, int __offset, void *__val, |
572 | socklen_t __vallen) __THROW; |
573 | |
574 | |
575 | /* Routing Header Option (RFC 3542). */ |
576 | extern socklen_t inet6_rth_space (int __type, int __segments) __THROW; |
577 | extern void *inet6_rth_init (void *__bp, socklen_t __bp_len, int __type, |
578 | int __segments) __THROW; |
579 | extern int inet6_rth_add (void *__bp, const struct in6_addr *__addr) __THROW; |
580 | extern int inet6_rth_reverse (const void *__in, void *__out) __THROW; |
581 | extern int inet6_rth_segments (const void *__bp) __THROW; |
582 | extern struct in6_addr *inet6_rth_getaddr (const void *__bp, int __index) |
583 | __THROW; |
584 | |
585 | |
586 | /* Multicast source filter support. */ |
587 | |
588 | /* Get IPv4 source filter. */ |
589 | extern int getipv4sourcefilter (int __s, struct in_addr __interface_addr, |
590 | struct in_addr __group, uint32_t *__fmode, |
591 | uint32_t *__numsrc, struct in_addr *__slist) |
592 | __THROW; |
593 | |
594 | /* Set IPv4 source filter. */ |
595 | extern int setipv4sourcefilter (int __s, struct in_addr __interface_addr, |
596 | struct in_addr __group, uint32_t __fmode, |
597 | uint32_t __numsrc, |
598 | const struct in_addr *__slist) |
599 | __THROW; |
600 | |
601 | |
602 | /* Get source filter. */ |
603 | extern int getsourcefilter (int __s, uint32_t __interface_addr, |
604 | const struct sockaddr *__group, |
605 | socklen_t __grouplen, uint32_t *__fmode, |
606 | uint32_t *__numsrc, |
607 | struct sockaddr_storage *__slist) __THROW; |
608 | |
609 | /* Set source filter. */ |
610 | extern int setsourcefilter (int __s, uint32_t __interface_addr, |
611 | const struct sockaddr *__group, |
612 | socklen_t __grouplen, uint32_t __fmode, |
613 | uint32_t __numsrc, |
614 | const struct sockaddr_storage *__slist) __THROW; |
615 | #endif /* use GNU */ |
616 | |
617 | __END_DECLS |
618 | |
619 | #endif /* netinet/in.h */ |
620 | |